§52.14. State ambient air quality standards.
40 C.F.R. § 52.14
Any ambient air quality standard submitted with a plan which is less stringent than a national standard is not considered part of the plan.
Notes, amendments, and revision history
Source
Source: 37 FR 10846, May 31, 1972, unless otherwise noted.
Authority
Authority: 42 U.S.C. 7401 et seq.
Amendments
[40 FR 5521, Feb. 6, 1975]